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Finding the Fourth Proportional to 119,800.80, 165,378.24 and 77,380.02

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Solution

The fourth proportional to 119,800.80, 165,378.24 and 77,380.02 is: 106,818.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,800.80 : 165,378.24 = 77,380.02 : x
  2. Step 2: Convert to fraction form
    119,800.80/165,378.24 = 77,380.02/x
  3. Step 3: Cross multiply
    119,800.80x = 165,378.24 × 77,380.02
  4. Step 4: Simplify right side
    119,800.80x = 12,796,971,518.76
  5. Step 5: Solve for x
    x = 12,796,971,518.76/119,800.80
  6. Step 6: Final answer
    x = 106,818.75

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